From c906108c21474dfb4ed285bcc0ac6fe02cd400cc Mon Sep 17 00:00:00 2001 From: Stan Shebs Date: Fri, 16 Apr 1999 01:35:26 +0000 Subject: Initial creation of sourceware repository --- gdb/config/m68k/tm-os68k.h | 46 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 gdb/config/m68k/tm-os68k.h (limited to 'gdb/config/m68k/tm-os68k.h') diff --git a/gdb/config/m68k/tm-os68k.h b/gdb/config/m68k/tm-os68k.h new file mode 100644 index 0000000..a69573f --- /dev/null +++ b/gdb/config/m68k/tm-os68k.h @@ -0,0 +1,46 @@ +/* Parameters for execution on VxWorks m68k's, for GDB, the GNU debugger. + Copyright (C) 1986, 1987, 1989, 1991 Free Software Foundation, Inc. + Contributed by Cygnus Support. + +This file is part of GDB. + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#define GDBINIT_FILENAME ".os68gdbinit" + +#define DEFAULT_PROMPT "(os68k) " + +#include "m68k/tm-m68k.h" + +/* We have more complex, useful breakpoints on the target. */ +#undef DECR_PC_AFTER_BREAK +#define DECR_PC_AFTER_BREAK 0 + +/* Takes the current frame-struct pointer and returns the chain-pointer + to get to the calling frame. + + If our current frame pointer is zero, we're at the top; else read out + the saved FP from memory pointed to by the current FP. */ + +#undef FRAME_CHAIN +#define FRAME_CHAIN(thisframe) ((thisframe)->frame? read_memory_integer ((thisframe)->frame, 4): 0) + +/* If the chain pointer is zero (either because the saved value fetched + by FRAME_CHAIN was zero, or because the current FP was zero so FRAME_CHAIN + never fetched anything), we are at the top of the stack. */ +/* We are guaranteed to have a zero frame pointer at bottom of stack, too. */ + +#undef FRAME_CHAIN_VALID +#define FRAME_CHAIN_VALID(chain, thisframe) nonnull_frame_chain_valid (chain, thisframe) -- cgit v1.1